Signboard for simultaneously starting maintenance items of multiple devices in electric power system

Abstract

The utility model discloses a signboard for simultaneously starting maintenance items of multiple devices of an electric power system, which comprises a signboard body marked with field operation characters, and is characterized in that a plurality of groups of movable counting boards are arranged at the top edge of the signboard body, a hanging body is arranged above the signboard body through a hanging rope, the hanging body comprises a magnet, and the magnet is fixed on the signboard body. And an insulating shell is arranged on the periphery of the magnet except the adsorption surface. The types and the number of work tickets of the working personnel working on the equipment or in the electrical interval are always improved; when a plurality of maintenance tasks exist in the same electrical equipment or electrical interval, after a certain maintenance task is ended, the possibility that operators receive signboards by mistake and operate original safety measures by mistake is reduced, and potential safety hazards endangering the personnel and the equipment are avoided; the defect that hanging of the signboard must depend on hardware such as a hook is overcome, the signboard can be hung on the electrical equipment at will without scratching insulating paint of a shell of the electrical equipment, the signboard is prevented from falling off, and maintenance safety is improved.

Description

Technical Field

[0001] The utility model relates to electric power maintenance technology, in particular to a signboard used for simultaneously starting maintenance projects of multiple equipment in an electric power system. Background Art

[0002] During the peak period of electrical equipment maintenance in pumped-storage power stations, multiple equipment maintenance projects are started at the same time, and maintenance of electrical equipment such as units, monitoring, and excitation may overlap in the same equipment interval or work area. The safety measures of multiple work tickets all require the same safety measures to be implemented for the same equipment interval or the same work area, such as setting up shielding fences, hanging "Work Here" signs, etc. After the maintenance of a certain work in the overlapping work is completed, the operating personnel need to restore the electrical equipment. If the warning signs set by other work tickets are mistakenly received, the safety measures of the ongoing maintenance work will be changed, and there is a risk that the work team members will go to the wrong equipment interval and accidentally operate other live equipment, posing a serious threat to personnel and equipment.

[0003] Traditional signboards are usually hung by strings on the top, such as the patent publication number CN117975810A, a fixing unit, an identification unit and a switching unit: the fixing unit fixes the power safety signboard at a preset position; the identification unit contains multiple state boxes under the corresponding operation scene, each state box represents an identification state; the switching unit switches among multiple state boxes to display the target state box; the fixing unit includes two through holes on the upper part of the power safety signboard and a hanging rope corresponding to each through hole. These designs must be hung with objects such as hooks or equipment door handles, and cannot be hung accurately at the location of equipment maintenance. In the process of equipment maintenance, if the hanging signboard falls into the equipment cabinet, it may cause a short circuit in the live part of the equipment, endangering the safety of the equipment and maintenance personnel. Summary of the invention

[0004] The purpose of the utility model is to solve the following problems: the operating personnel cannot ensure the safe implementation of maintenance work due to the change of safety measures listed on other work tickets caused by the termination of some work tickets, or personal and equipment accidents caused by work team members walking into the wrong intervals and erroneous operation of operating equipment due to the lack of safety measures, and the traditional signboards are hung arbitrarily. A signboard is provided for the simultaneous start of maintenance projects of multiple equipment in the power system, so as to facilitate the production and production management personnel to control the on-site work tickets and safety measures.

[0005] The above technical problems of the present utility model are mainly solved by the following technical solutions: A signboard for simultaneous start of maintenance projects of multiple devices in a power system, including a signboard body marked with the words "on-site operation", characterized in that several groups of movable counting plates are provided at the top edge of the signboard body, a suspension body is provided above the signboard body through a hanging rope, the suspension body includes a magnet, and an insulating outer shell is provided on the periphery of the magnet except for the adsorption surface.

[0006] In the signboard for simultaneous start of maintenance projects of multiple devices in the power system described above, preferably, an insulating and rust-proof paint layer is provided on the adsorption surface of the magnet.

[0007] In the signboard for simultaneous start of maintenance projects of multiple devices in the power system described above, preferably, the part of the insulating outer shell in the same plane as the adsorption surface of the magnet has a soft rubber layer.

[0008] In the signboard for simultaneous start of maintenance projects of multiple devices in the power system described above, preferably, a suspension hole is provided at the bottom end of the suspension body, the upper end of the hanging rope is connected to the suspension body through the suspension hole, and the lower end of the hanging rope is connected to the signboard body.

[0009] In the signboard for simultaneous start of maintenance projects of multiple devices in the power system described above, preferably, the magnet is a cylinder or has a shoulder structure on the cylinder.

[0010] In the signboard for simultaneous start of maintenance projects of multiple devices in the power system described above, preferably, a handle is provided on the surface of the insulating outer shell.

[0011] In the signboard for simultaneous start of maintenance projects of multiple devices in the power system described above, preferably, the several groups of movable counting plates are positioned on the signboard body through snap rings and through-hole positions provided at the top edge of the signboard body.

[0012] In the signboard for simultaneous start of maintenance projects of multiple devices in the power system described above, preferably, the snap ring is an elastic body in a circular or oval or polygonal shape, and a self-inserting tenon groove is provided on the ring body of the snap ring.

[0013] In the signboard for simultaneous start of maintenance projects of multiple devices in the power system described above, preferably, the several groups of counting plates include a type-I work ticket counting plate, a type-II work plate counting plate, and a mechanical ticket counting plate. The several groups of counting plates are arranged at equal intervals, and several single plates are provided for each type of counting plate.

[0014] In the signboard for simultaneous start of maintenance projects of multiple devices in the power system described above, preferably, the connection points of the lower end of the hanging rope and the signboard body are two, and the distance between the two connection points is greater than the width of the movable counting plate.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: during the maintenance period, it reminds the maintenance personnel and the operating personnel of the types and quantities of work tickets for working on this equipment or within the electrical bay; when there are multiple maintenance tasks within the same electrical equipment or electrical bay, after completing one maintenance task, it reduces the possibility of the operating personnel misreceiving the signboards and misoperating the original safety measures, avoiding potential safety hazards to personnel and equipment; at the same time, through the combination of the hanging member and the signboard, it gets rid of the disadvantage that hanging the signboard must rely on hardware such as hooks, and realizes arbitrary hanging on the electrical equipment through the magnetic body without scratching the insulating paint on the shell of the electrical equipment, preventing the possibility of the signboard falling, and improving the safety of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model.

[0017] Figure 2 is a schematic structural diagram of a hanging body of the present utility model.

[0018] Figure 3 is a schematic structural diagram of a buckle of the present utility model.

[0019] Figure 4 Schematic structural diagram of one of the embodiments of the hanging body of the present utility model.

[0020] Figure 5 Schematic structural diagram of the second embodiment of the hanging body of the present utility model.

[0021] Figure 6 Schematic structural diagram of the third embodiment of the hanging body of the present utility model.

[0022] Figure 7 is a schematic structural diagram of the use state of the present utility model.

[0023] In the figure: 1 - hanging body, 101 - insulating shell, 1011 - hanging hole, 102 - magnet, 2 - signboard body, 3 - buckle, 301 - self-inserting tenon groove, 4 - counting plate, 5 - hanging rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following is a further specific description of the technical solution of the present utility model through embodiments and in conjunction with the drawings.

[0025] This embodiment is a signboard for simultaneous start-up of multiple equipment maintenance projects in a power system, such as Figure 1As shown in the figure, it includes a square sign body 2 marked with the words "Work Here" for on-site operations. At the top edge of the sign body 2, there are 3 groups of movable counting plates 4, including a counting plate for Type I work tickets, a counting plate for Type II work tickets, a counting plate for mechanical tickets, etc. The 3 groups of counting plates are arranged at equal intervals. According to the operation plan, each type of counting plate has multiple single plates.

[0026] Above the sign body 2, there is a suspension body 1 through a hanging rope 5. The suspension body 1 includes a magnet 102. An insulating outer shell 101 is provided on the periphery of the magnet 102 except for the adsorption surface. As Figure 2 shown. Specifically, an insulating and rust-proof paint layer is provided on the adsorption surface of the magnet 102, and the part of the insulating outer shell 101 located in the same plane as the adsorption surface of the magnet 102 has a soft glue layer. The insulating and rust-proof paint layer and the soft glue layer prevent the magnet 102 from scratching the insulating paint of the electrical equipment shell when the magnet 102 adsorbs on the surface of the electrical equipment shell.

[0027] At the bottom end of the suspension body 1, there is a suspension hole 1011. The upper end of the hanging rope 5 is connected to the suspension body 1 through the suspension hole 1011, and the lower end of the hanging rope 5 is connected to the sign body 2. There are two connection points at the lower end of the hanging rope 5 connecting to the sign body 2, and the distance between the two connection points is greater than the width of the movable counting plate 4 to facilitate the flipping of the movable counting plate 4. The 3 groups of movable counting plates 4 are all positioned on the sign body 2 through a buckle 3 and a through-hole provided at the top edge of the sign body 2. The buckle 3 is a circular or oval or polygonal structure with a certain elasticity. There is a self-inserting tenon groove 301 on the ring body of the buckle 3. As Figure 3 shown, the movable counting plate 4 can be installed or disassembled through the self-inserting tenon groove 301.

[0028] One embodiment of the magnet 102 is a cylinder structure, which can be referred to Figure 2 and Figure 6 . Except for one adsorption surface exposed, other parts of the cylinder are covered by the insulating outer shell 101. Among them, Figure 6 in the shown structure, a handle 1012 is provided on the insulating outer shell 101 to facilitate grasping during operation.

[0029] Another embodiment of the magnet 102 is a cylinder with a shoulder structure, as Figure 4 , Figure 5 shown. Similarly, except for one adsorption surface exposed, other parts of the magnet 102 are covered by the insulating outer shell 101. Among them, Figure 5 in the shown structure, a handle 1012 is provided on the insulating outer shell 101 to facilitate grasping during operation.

[0030] Working principle and application: When in use, the first type of work ticket counter, the second type of work ticket counter, and the mechanical ticket counter are combined with the sign body 2 through the buckle 3. There are 10 pieces of each type of work ticket counter. The suspension body 1 is connected to the sign body 2 by a hanging rope 5, and the sign is adsorbed on any prominent position of the electrical equipment shell through the magnet 102 in the suspension body 1 at the operation site.

[0031] The sign in this embodiment realizes the reminder of the number of work tickets on the same electrical equipment, avoiding the potential safety hazard that the operating personnel may mistakenly operate the original safety measures after one work ticket is completed, leaving a hidden danger to the safety of the work team members of another work ticket. At the same time, this sign does not need to rely on hooks or doorknobs and other hardware with hooks, realizing arbitrary suspension, avoiding the limitation of the sign suspension position and the potential safety hazard of falling.

[0032] The above embodiments are illustrative of the present invention and not restrictive thereof. Any simple transformation of the structure of the present invention by those of ordinary skill in the art without departing from the principle of the technical solution and without creative efforts falls within the protection scope of the present invention.

Claims

1. A signboard for simultaneously starting multiple equipment maintenance projects in an electric power system, comprising a signboard body (2) marked with the words "on-site operation", characterized in that A plurality of groups of movable counting signs (4) are arranged on the top edge of the sign body, and a hanging body (1) is arranged above the sign body via a hanging rope (5). The hanging body comprises a magnet (102), and an insulating shell (101) is arranged on the periphery of the magnet except for an adsorption surface.

2. The signboard for simultaneously starting multiple equipment maintenance projects in the power system according to claim 1 is characterized in that: An insulating anti-rust paint layer is provided on the adsorption surface of the magnet (102).

3. The signboard for simultaneously starting multiple equipment maintenance projects in a power system according to claim 1 is characterized in that: The portion of the insulating shell (101) located in the same plane as the adsorption surface of the magnet (102) has a soft rubber layer.

4. The signboard for simultaneously starting multiple equipment maintenance projects in a power system according to claim 1, 2 or 3, characterized in that: The bottom end of the hanging body (1) is provided with a hanging hole (1011), the upper end of the hanging rope (5) is connected to the hanging body through the hanging hole, and the lower end of the hanging rope is connected to the sign body (2).

5. The signboard for simultaneously starting multiple equipment maintenance projects in a power system according to claim 1, 2 or 3, characterized in that: The magnet (102) is a cylinder or a cylinder with a shoulder structure.

6. The signboard for simultaneously starting multiple equipment maintenance projects in a power system according to claim 1, 2 or 3, characterized in that: A handle (1012) is provided on the surface of the insulating housing (101).

7. The signboard for simultaneously starting multiple equipment maintenance projects in a power system according to claim 1 is characterized in that: The plurality of groups of movable counting signs (4) are positioned on the sign body through the buckle ring (3) and the through-ring hole provided on the top edge of the sign body (2).

8. The signboard for simultaneously starting multiple equipment maintenance projects in a power system according to claim 7 is characterized in that: The buckle ring (3) is a circular, elliptical or polygonal elastic body, and a self-insertion tenon groove (301) is provided on the buckle ring body.

9. The signboard for simultaneously starting multiple equipment maintenance projects in a power system according to claim 1 or 7, characterized in that: The plurality of groups of movable counting cards (4) include type I work ticket counting cards, type II work card counting cards, and mechanical ticket counting cards. The plurality of groups of counting cards are arranged at equal intervals, and each type of counting card is provided with a plurality of single cards.

10. The signboard for simultaneously starting multiple equipment maintenance projects in a power system according to claim 4 is characterized in that: There are two connection points between the lower end of the hanging rope (5) and the sign board body (2), and the distance between the two connection points is greater than the width of the movable counting board (4).

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